Many lessons include both spoken and written language. Spoken is indicated by the speaker icon, and can help you with correct pronunciation. Written text will help define the term(s).
You can move through items in a lesson individually, or play them all at once. The following image shows one of these lessons:

Some lessons provide additional icons so that you can adjust the speed of the verbal interaction. Look for the turtle icon to slow down speech within a lesson if it's available.
When you are finished with a section, click the Done button to move to the next part of the lesson.
If you close out of a lesson before completion, your progress is saved when you log back into Transparent Language.